Twin Star oil

Since on longer / multi-day XC flights you may need to add oil away from BFI and the required AeroShell Ultra Diesel oil is not exactly ubiquitously available, both of our Twin Stars now have a dedicated plastic box in the left nose baggage compartment containing an oil funnel as well as a full quart of that oil. If you find no such oil bottle in the box – or you’re using the one in the box up at BFI during pre-flight – please grab a replacement bottle from the oil room, making sure to mention it on the aircraft check-in page of the plane’s tablet.
(Please note that there is a second funnel of the same type in the right nose baggage compartment – that one is to be used for TKS only!)

One quick note on oil measuring on the twins – you always want to clean the stick with a one-way paper towel sheet before dipping it again for the actual measuring; otherwise you will likely see more oil on the stick than is actually in the engine.
As soon as the levels are below half it’s a good idea to add a half gallon (not more though, please be careful to not overfill!) Typically you split one bottle between the two engines half/half or as needed.
Also, we recommend to make use of the provided step stool (nose compartment); it makes the oil check and especially the refill process easier and helps avoid making a mess.

The chocks and tie-downs have been moved from the nose to the storage compartment behind the rear passenger seats.

Drinks in the cockpit

Two inflight engine shut downs have prompted Airbus and EASA to order changes to how liquids are consumed (or not) on the flight deck. In January, a drink spilled on the center console of a Delta flight required a diversion. Two months earlier, an Asiana flight diverted after a similar spill. 

Hydration is important, especially on X/C flights – but needless to say, spilled drinks into or onto any cockpit components can lead to both inflight issues, major clean-up/MX costs, and aircraft downtimes.

Please be mindful only bring travel mugs or other containers that can be fully closed, and make sure passengers of yours do the same.

Non-carbonated water is still the best way stay hydrated on any flight.

C172S Tachometer: Normal operating limit

This is a reminder that the normal engine speed operating limit (top of green arc, representing ~75% BHP) changes with altitude.

See also POH:

  • Section 4: ENROUTE CLIMB and CRUISE
Top of normal operating RPM range (standard-day conditions):
2,500 RPM between sea level and 5,000′
2,600 RPM from 5,000′ – 10,000′
2,700 RPM above 10,000′

Soft-field operations

This is a gentle reminder of Renter/Student Ops Manual regulation 5.6 – Runway Requirements – and 5.6E in particular, which states “Operations into any field other than paved surfaces (soft, gravel, sand, grass, etc) are prohibited unless prior approval is obtained from the Director of Operations, Chief or Assistant Chief Flight Instructor.

Soft fields can have hidden hazards like potholes or rocks in the grass, gravel causing prop damage, etc., and mud is the last thing you want to get stuck in during landing or trying to get out of on takeoff. These are all unnecessary problems, and therefore all soft-field exercises should be simulated on paved taxiways and runways .

Soft-field landing in our Twin Stars are not allowed at all; it’s not part of multi-engine training anyway.

Thank you for your understanding and helping keep our planes in the condition you wish to find them when you want to go fly!